I'm having a cluster**** of a problem, I ripped a minidv from virtualdub and the audio/video goes out of sync after about 20 minutes, the speech doesn't match up with whats being said. I tried interlacing (I think it's called) and delayed the sound by -1000 ms, I fastforwarded and the words were matched up with the persons mouth but then when I watch earlier footage, now that footage is not synced up. I have no idea what to do, this is extremely frustrating.